Samul, Ondrej
Current rating: 1395
Record: 7-14-1
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 163 | Schoofs, Simon (1500) | Lost 1-2 | -171447 |
| 3legacy | 205 | Garcia, Rafael [ESP] (1452) | Lost 1-2 | -181429 |
| 4legacy | 410 | Laurila, Jesse (1486) | Lost 1-2 | -171412 |
| 5legacy | 379 | Nieuwland, Iwan (1469) | Lost 0-2 | -171395 |
| top | average opponent: 1477record: 0-4 | new rating: 1395 | ||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 169 | Nottebrock, Jorg (1471) | Won 2-0 | +191458 |
| 2sealed | 13 | Kraft, Rene (1768) | Draw 1-1 | +51463 |
| 3sealed | 103 | Danek, Jan (1457) | Won 2-0 | +181481 |
| 4sealed | 84 | Sushalskyy, Sergiy (1434) | Lost 1-2 | -191462 |
| 5sealed | 143 | Mede, Tobias (1530) | Won 2-0 | +191481 |
| 6sealed | 82 | Lanka, Tomas (1524) | Lost 1-2 | -171464 |
| top | average opponent: 1531record: 3-2-1 | new rating: 1464 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 550 | Miranda, Vincenzo (1560) | Won 2-0 | +201485 |
| 3sealed | 594 | Birner, Armin (1912) | Lost 0-2 | -111474 |
| 4sealed | 628 | Matejka, Karel (1518) | Lost 1-2 | -171457 |
| 5sealed | 726 | Mur, Jaka (1473) | Lost 1-2 | -181439 |
| top | average opponent: 1616record: 1-3 | new rating: 1439 | ||
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 79 | Knevels, Christophe (1536) | Lost 0-2 | -171483 |
| 3extended | 121 | Blumel, Jan-eric (1434) | Lost 1-2 | -191464 |
| 4extended | 165 | Kiehn, Manuel (1482) | Won 0-0 | +181482 |
| 5extended | 166 | Hoss, Michael (1503) | Won 2-0 | +181500 |
| 6extended | 88 | Ulatowski, Przemyslaw (1566) | Lost 1-2 | -161484 |
| 7extended | 134 | Tumpach, Markus (1443) | Lost 0-2 | -191465 |
| 8extended | 126 | Klocke, Dennis (1435) | Won 2-1 | +171482 |
| 9extended | 92 | Stihle, Laurent (1515) | Lost 0-2 | -171465 |
| top | average opponent: 1489record: 3-5 | new rating: 1465 | ||